The set-up: The researchers recruited 28 healthy, active men and tweaked their daily diets to include 50 percent more fat and 30 percent more calories (to enhance the effect). The men were then broken into three groups. The first group endured no exercise at all, while the other two groups were both given grueling morning exercise routines. Four times a week, they ran and cycled at intense levels. However, of those two groups, one worked out after a carbohydrate-rich breakfast and drank sports drinks throughout their workout. The other group drank only water and ate breakfast after hitting the gym......The results: The group that didn’t exercise at all gained an average of more than six pounds (we’re surprised it wasn’t more!). They also developed unhealthy conditions that are often precursors of diabetes including an insulin resistance. The men who ate breakfast before exercising also gained weight (although only about half as much as the first group) and similar cautionary diabetes signs. The group that exercised before breakfast gained almost no weight and showed no signs of insulin resistance. They also burned the extra dietary fat more efficiently.........The takeaway: Exercise routines in this study were very intense 60- to 90-minute sessions. Yet the researchers have said even less intense workouts could have similar results. The old something-is-better-than-nothing way of thinking! “I recommend exercising before breakfast, of course,” says Van Proeyen. But she can’t recommend an ideal breakfast menu: “Based on our findings we cannot say what the best breakfast is. However, a healthy, well-balanced fiber-rich breakfast—mainly consisting of carbohydrates—is the most optimal breakfast to maintain a good health in normal fit individuals.” We wanted to know if this trick would work with lunchtime workouts too. Turns out, it doesn’t. “Our subjects always performed the exercise after a 10- to 12-hour overnight fast, which is likely the most convenient way to stimulate fat oxidation.” The time between breakfast and lunch is only about 4 to 6 hours and that’s not enough time to maximize fat oxidation before the workout. Moral of the story: Set your alarm earlier each morning. Get your daily run out of the way, eat breakfast at your desk and enjoy a long, gym-free lunch break.

1. Exercise before breakfast burns more body fat than after eating later in the day.

2. To burn off what you have just eaten first before tapping into stored body fat (and insulin is elevated after a meal.)

3. It raises your metabolism from its lowest and it stays elevated for a period of time after the workout is over. If you exercise in the evening, you burn calories during the session, but you don’t get the same advantage of the “afterburn” effect because your metabolic rate drops dramatically as soon as you go to sleep.

4. Morning exercise before gives you a feeling of accomplishment and makes you more productive the rest of the day.
Morning exercise “energizes” you and “wakes you up” by turning off melatonin (the sleep hormone) and turning on serotonin (the feel good hormone).

5. There is some evidence that morning exercise before meal may help regulate your appetite for the rest of the day. You’re also more likely to make better eating choices if you have already done your exercise for the day.

6. Your body’s circadian rhythm adjusts to morning routine, making it easier to wake up at the same time every day.
You’re less likely to skip your workout when it’s out of the way early. After meal, your get tired and there are possible demands likely to get in the way, like working back late or you just feel too tired or someone invites you. Check out http://exerciseiq.com.au/seven-reasons-for-exercise-before-breakfast/ for more tips. Good luck!

before break fast do exercise is good . Doing breath in and out,hands up an hands down. do this exercise before 5 minutes eating the break fast .
after break fast you don't do any exercise , this cause so many digestive problems ,after 20 minutes from break fast you do exercise.